Pumps & Pumping Research
Horizontal Process Pumps Modification to Comply With API-610 Sixth Edition Forces And Moments Diamond like Carbon Coatings Tribological Possibilities and Limitations in Applications on Sintered Silicon Carbide Bearing and Seal Faces Changes in Pump Vibration Levels Caused by the Misalignment of Different Style Couplings High Pressure Noncontacting Mechanical Seal for API Applications A Case History […]
Pumps & Pumping Education
Improved Mechanical Seal For High Pressure Pumps in Severe Abrasive Tailings Services Zero Emission Solutions for Mechanical Seals on Light Hydrocarbons Pressure Ratings of Mechanical Seals The Control of Variable Speed Pumps in Parallel Operation An Overview of Hardfaced Coatings for Industrial Use Development of a Noncontacting Seal for Gas Liquid Applications Using Wavy Face […]
Falcon & Knelson Concentrators Compared
Read these papers and try to Compare Falcon & Knelson Concentrators only to find out; they perform the same. Both use high gravity centrifugal forces to separate gold from ore with similar results. Do no be fooled by the propaganda. The laws of gravity apply to everyone whether you believe in them or not.
See-saw Crusher
The See-Saw Crusher is made of a very heavy stone or steel ‘see-saw’ crushers are rolled over the material which is to be crushed with the aid of a lever arm. The material is placed on a flat stone or steel surface and the product is similar to that from a roller crusher.
Ball Casting Machine
This machine is designed especially to make cast steel balls, utilizing the newly patented Payne hot top principle. This machine will produce solid cast alloy steel balls equal in quality to the best forged steel balls, at a very low cost. The Ball Casting Machine consists essentially of a rotary turntable and thirty-six copper ball […]
Arrastra
The Arrastra was also one of the earliest crushing machines in use in America, being introduced at the same time as the Patio process—i.e., about 1557—and is still in wide use in Mexico, although chiefly in the treatment of silver ores by the Patio process. It is a circular, shallow, flat-bottomed pit, 10 to 20 feet […]
Gold Amalgamation Equipment
AMALGAM PRESS The Amalgam Press is used wherever the process of amalgamation is practiced. The amalgam is wrapped in a wet chamois skin and inserted in the press, which extrudes the surplus amalgam. The press consists of a steel cylinder, slotted on the sides and perforated on the bottom. The steel piston is forced into […]
Water Balance Management
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Heap Leaching
Heap leaching of gold and silver ores is conducted at approximately 120 mines worldwide. Heap leaching is one of several alternative process methods for treating precious metal ores, and is selected primarily to take advantage of its low capital cost relative to other methods. Thirty-seven different heap leach operations with a total production of 198 […]
Pachuca Tank
Pachuca tanks are used for a wide variety of leaching and mixing operations in the minerals industry. Previously, an equation was derived to predict the circulation in a Pachuca tank with full height draft tube risers. This analysis was subsequently verified with data from a large bore air-water flow loop used. However, the equation was based on the assumption that the solids settling velocity was […]